With regar to warez groups or organized piracy groups, a movie is usually released in several formats and different versions as to the fact that the primary sources used by a group for a particular movie may vary. Pirated movies are primarily released by these organized groups referred to as "scene" groups or "warez groups". These groups first release of a movie is usually lower quality (due to a lack of sources), and is eventually replaced with better quality releases as better sources are available.